Home » Devices » Surface Duo vs. Surface Pro 4 - Detailed Specs Comparison

Surface Duo vs. Surface Pro 4 - Detailed Specs Comparison

Here's what you need to know what's different between Surface Duo and Surface Pro 4 specs including CPU, RAM, storage, battery, display, and more.

BY Evan Forrest February 21, 2026

Surface Duo vs. Surface Pro 4

The 2020 Surface Duo features the 5W Qualcomm Snapdragon 8-core Qualcomm® Snapdragon™ 855 with a clock speed of 2.84 GHz. While the 2015 Surface Pro 4 features the 4.5W 6th Generation Intel Skylake dual-core Intel Core m3-6Y30 up to dual-core Intel Core i7-6650U with the boost speed up to 3.40 GHz.

If you are in the market looking for a laptop and don't know what's the difference between the 8.1″ Surface Duo (2020) and the 12.3″ Surface Pro 4 (2015), we have a detailed tech specs comparison between both devices for you to check out here.

Surface Duo vs. Surface Pro 4: Specs Comparison

	Compare With Please enter device name or part of it Surface Duo See at Amazon	Compare With Please enter device name or part of it Surface Pro 4 See at Amazon
Key Features
What's new		New Design It’s now thinner (8.4mm), lighter (766g), the smaller bezel on the same footprint. Better display New bigger and better 12.3” PixelSense display with Microsoft G5 chipset. Better performance It’s now 30% faster than Surface Pro 3 with the range of 6th Gen Intel processors. Better Inking It now supports Surface Pen with 1,024 pressure sensitivity, magnet attached to the side of Surface Pro 4. Windows Hello It's all comes with Windows Hello facial recognition as standard. More Better 8.0MP rear-facing autofocus camera, new 1866 MHz LPDDR3 RAM.

Availability	Surface Duo	Surface Pro 4
Released	2020	2015
Release Info	Introduced: Microsoft October Event (October 2, 2019) Pre-ordered: August 12, 2020 Released: September 10, 2020	Introduced: October 7, 2015 Pre-ordered: October 7, 2015 Released: October 26, 2015
Pricing	$1,399 - 128 GB $1,499 - 256 GB	Starting at 899$
Amazon Deals	$1,539.00 Microsoft Surface Duo 256GB (Unlocked) - Glacier $182.09 Microsoft Surface Pro 6 (Intel Core i5, 8GB RAM, 128GB SSD) Platinum (Renewed) $1,489.00 Microsoft Surface 13.8" 2K Touch Laptop, Snapdragon X2 Plus, 16GB LPDDR5X, 1.5TB Storage(512GB SSD+1TB Docking Station Set), Adreno Graphics, Backlit Keyboard, Copilot+ PC, Wi-Fi 7, Win 11 Pro, Dune	$147.96 Microsoft Surface Pro 4 12.3" Laptop i5-6300U 4GB 128GB SSD W10P Touch (Renewed) $149.00 Microsoft Surface Pro (5th Gen, 1796) Intel Core M 4GB RAM / 128GB, 2017 model (Renewed) $176.90 Microsoft Surface Pro 4 Touchscreen Tablet(Renewed)

Surface Duo Price
	Microsoft Surface Duo 256GB (Unlocked) - Glacier By Microsoft $1,539.00	See at Amazon
	Microsoft Surface Pro 6 (Intel Core i5, 8GB RAM, 128GB SSD) Platinum (Renewed) By Microsoft $182.09 $875.49 79% OFF	See at Amazon
	Microsoft Surface 13.8" 2K Touch Laptop, Snapdragon X2 Plus, 16GB LPDDR5X, 1.5TB Storage(512GB SSD+1TB Docking Station Set), Adreno Graphics, Backlit Keyboard, Copilot+ PC, Wi-Fi 7, Win 11 Pro, Dune By Microsoft $1,489.00	See at Amazon
Microsoft Surface Pro 4 12.3-inch Price
	Microsoft Surface Pro 4 12.3" Laptop i5-6300U 4GB 128GB SSD W10P Touch (Renewed) By Microsoft $147.96	See at Amazon
	Microsoft Surface Pro (5th Gen, 1796) Intel Core M 4GB RAM / 128GB, 2017 model (Renewed) By Microsoft $149.00 $899.99 83% OFF	See at Amazon
	Microsoft Surface Pro 4 Touchscreen Tablet(Renewed) By Microsoft $176.90	See at Amazon

Display	Surface Duo	Surface Pro 4
Size	8.1 Inches	12.3 Inches
Info	Dual PixelSense™ Fusion Displays open: 8.1” AMOLED, 2700x1800 (3:2), 401 PPI Single PixelSense™ Display: 5.6” AMOLED, 1800x1350 (4:3), 401 PPI Display Material: Corning® Gorilla® Glass	Resolution: 2736 x 1824 (5M Pixels) Density: 267 PPI PixelSense™ Display Contrast ratio: 1300:1 Aspect ratio: 3:2 Inking: designed together with Surface Pen Touch: 10 points multi-touch with GPU-based processing 100 percent sRGB color, individually calibrated

Exterior	Surface Duo	Surface Pro 4
Size Comparison
Dimensions	7.35 x 5.71 x 0.18 (186.9 mm x 145.2 mm x 4.8 mm) Open 3.67 x 5.71 x 0.38 (93.3 mm x 145.2 mm x 9.9 mm) Closed	11.50” x 7.93” x 0.33” (292 mm x 201.42 mm x 8.4 mm) Width: 11.50” (292 mm) Height: 7.93” (201.42 mm) Thickness: 0.33” (8.4 mm)
Weight	0.55 lbs (250 g)	Intel Core m3: 1.69 lbs (766 g) Intel Core i5 and i7: 1.73 lbs (786 g)
Colors	Glacier	Silver
Keyboard and Trackpad		Surface Type Cover Not included Weight: 0.68 lb (310 g) Dimension: 11.61 x 8.54 x 0.19 inches (295 mm x 216 mm x 5mm) Keyboard: Activation: Moving (mechanical) keys Layout: QWERTY, full row of function keys (F1-F12) 4 directional keys; Windows, Brightness and Media Controls Keys; LED backlighting Trackpad: Precision glass trackpad. Trackpad size: 4 x 2 inches (101.6 mm x 50.8 mm) Supports a five-finger multitouch gesture.
Ports	1 x USB Type-C 1 x SIM card slot	1 x Full-size USB 3.0 1 x Mini DisplayPort 1 x Surface Connect™ Supports charging and docking station. 1 x Headset jack 1 x microSD™ card reader 1 x Type Cover port

Internal Specs	Surface Duo	Surface Pro 4
Processor	Qualcomm® Snapdragon™ 855 8 cores, 8 threads, 2.84 GHz, 5MB Cache, 5W	6th Gen Intel® Core™ m3-6Y30 2 cores, 4 threads, 0.90 → 2.20 GHz, 4MB SmartCache, 4.5W 6th Gen Intel® Core™ i5-6300U 2 cores, 4 threads, 2.40 → 3.00 GHz, 3MB SmartCache, 15W 6th Gen Intel® Core™ i7-6650U 2 cores, 4 threads, 2.20 → 3.40 GHz, 4MB SmartCache, 15W
Integrated Graphics	Qualcomm® Snapdragon™ 855 Qualcomm® Adreno™ 640 GPU 585 MHz	6th Gen Intel® Core™ m3-6Y30 Intel® HD Graphics 515 24 Execution Units, 300 → 850 MHz 6th Gen Intel® Core™ i5-6300U Intel® HD Graphics 520 24 Execution Units, 300 → 1000 MHz 6th Gen Intel® Core™ i7-6650U Intel® Iris® Graphics 540 48 Execution Units with 64 MB eDRAM side cache, 300 → 1050 MHz
Memory	6GB DRAM	4GB 8GB 16GB 1866 MHz LPDDR3 RAM
Storage	128GB 256GB UFS 3.0 of internal storage	128 GB 256 GB 512 GB 1 TB PCIe NVMe SSD

Connectivity	Surface Duo	Surface Pro 4
Wi-Fi	WiFi-5 802.11ac (2.4/5GHz)	Wi-Fi 5: IEEE 802.11 a/b/g/n/ac compatible.
Bluetooth	Bluetooth Wireless 5.0 technology	Bluetooth Wireless 4.0 technology
	LTE: 4x4 MIMO, Cat.18 DL / Cat 5 UL, 5CA, LAA. Up to 1.2Gbps Download / Up to 150Mbps Upload Bands Supported: FDD-LTE: 1,2,3,4,5,7,8,12,13,14,19,20,25,26,28,29,30,66 TD-LTE: 38,39,40,41,46 WCDMA: 1,2,5,8 GSM/GPRS: GSM-850, E-GSM-900, DCS-1800, PCS-1900 Location: GPS, Galileo, GLONASS, BeiDou, QZSS One eSIM and one Nano SIM Note: AT&T locked device will not support eSIM

Battery	Surface Duo	Surface Pro 4
Size	3577 mAh	38.2 Wh
Battery Life	Up to 15.5 hours of Local Video Playback Up to 10 days of Standby Time Up to 27 hours of Talk Time	Up to 9 hours of video playback
Power Supply	18W USB-C PD charger	36W proprietary power supply USB-A output: 5W Surface Connect: 31W

Software	Surface Duo	Surface Pro 4
OS	Android™ 10 3-years of software updates.	Windows 10 Pro
Built-in Apps	Microsoft built-in applications: Microsoft Office: Word, Excel, PowerPoint, Office Lens, PDF Reader, and more Microsoft Outlook Microsoft Teams Microsoft OneDrive Microsoft Edge Microsoft OneNote Microsoft To Do Microsoft News Microsoft Authenticator Microsoft Bing Search Intune Company Portal LinkedIn Microsoft Solitaire Collection Surface Audio Microsoft Surface Duo UI core features: Dual screen windowing Adaptive modes App Groups Microsoft 365 Feed Dynamic dock Universal Search Adaptive Camera Microsoft SwiftKey Adaptive Keyboard Your Phone Companion - Link to Windows Other preinstalled apps: Google Search Google Assistant Google Calendar Google Drive Google Duo Google Photos Google Play Movies & TV Google Play Store Google Maps Chrome Gmail YouTube YouTube Music Contacts Messages Phone Files Clock Calculator Sound recorder Spotify (Unlocked) HBO MAX (AT&T) AT&T TV (AT&T) My AT&T (AT&T) Call Protect (AT&T) Amazon Shopping (AT&T) NBA (AT&T)	Microsoft Office 30-days trial

Camera & Audio	Surface Duo	Surface Pro 4
Camera	Adaptive camera 11MP, f/2.0, 1.0 µm, PDAF and 84.0° diagonal FOV optimized with AI for front and rear Photos: Auto mode with low-light & HDR multi-frame photo capture and dynamic range scene detection Super-resolution zoom, and super zoom up to 7x Portrait mode with adjustable depth control Panorama mode Burst mode Video recording: 4K video recording at 30 fps and 60 fps 1080p video recording at 30 fps and 60 fps HEVC and H.264 video recording formats Gyro-based digital video stabilization Video Conferencing Microsoft Teams and Skype video conferencing up to 1080p at 30fps High CRI LED Flash for both front and world facing photo and video scenarios	Windows Hello face authentication camera (front-facing) 5.0MP front-facing camera with 1080p Skype HD video 8.0MP rear-facing autofocus camera with 1080p full HD video
Audio	Mono speaker Dual Mic noise suppression and echo cancellation optimized for productive use in all postures Best-in-class Full Duplex communication for voice calls in hands-free mode Audio formats supported: 3GP, MP3, MP4, MKV, WAV, OGG, M4A, AAC, TS, AMR, FLAC, MID, MIDI, RTTL, RTX, OTA, IMY Qualcomm® aptX™ Adaptive	Dual microphones Front-facing stereo speakers with Dolby® Audio

Misc	Surface Duo	Surface Pro 4
Inking	Supports all in market generations of Surface Slim Pen, Surface Pen and Surface Hub 2 Pen 4096 levels of pressure Tilt sensing Best in class latency Paper feel magnetic storage	Supports Surface Pen 1024 levels of pressure magnetic storage
Sensors	Dual Accelerometer Dual Gyroscope Dual Magnetometer Dual Ambient Light Sensor Proximity Sensor Hall Sensor Fingerprint Sensor	Ambient light sensor Accelerometer Gyroscope Magnetometer
Security	Biometric lock type: Fingerprint reader (1:100K FAR <3% FRR) Lock type: Swipe, PIN, password Security applications pre-loaded on the device: Microsoft Authenticator	HW TPM 2.0 chip for enterprise security Enterprise-grade protection with Windows Hello face sign-in
In the box	Surface Duo Surface Duo Bumper (Color: Glacier) Surface Duo USB-C® Power Supply (18w) Quick Start Guide Warranty and Compliance Guide SIM Ejector tool	Surface Pro 4 Surface Pen Power supply Quick Start Guide Safety and warranty documents
Warranty	One-year limited hardware warranty
More	Exterior Material: Corning® Gorilla® Glass	Mechanical features: Signature unibody magnesium design with hidden perimeter venting Kickstand with a full-friction multiposition hinge to 150 degrees Magnetic attach for keyboard fold stability Physical buttons: volumes, power